An offshore wave photovoltaic power generation device and system with intelligent power system

Abstract

The present invention relates to the field of offshore power generation technology, and discloses an offshore wave-light storage power generation device and system with an intelligent power system. The device includes: a photovoltaic power generation device, a wave power generation device, a sensor device, an energy storage device and an intelligent power device. The energy storage device includes an energy storage battery system, an inverter and an energy transmission interface, wherein the energy transmission interface is used to output the electric energy stored in the energy storage battery system through the inverter; the intelligent power device includes: a power system, a controller and a communication device; the controller controls the power system to drive the offshore floating carrier to float to the target position and control the power generation mode based on the data obtained by the sensor device and by obtaining the control instructions of the control main station; the communication device is used for information communication between the device and the control main station. The device provided by the present invention moves and adjusts at sea, selects the most suitable location for photovoltaic or wave power generation, improves the power generation efficiency and stability, and ensures the reliability of the device.

Description

Technical Field

[0001] The present invention relates to the field of offshore power generation technology, and in particular to an offshore wave photovoltaic power generation device and system with an intelligent power system. Background Art

[0002] Existing offshore photovoltaic power generation systems can only install photovoltaic panels in fixed positions and cannot be adjusted according to changes in sunlight and the inclination of photovoltaic panels. Therefore, on cloudy days or when the sun is low, the efficiency of photovoltaic power generation will be greatly reduced. Existing offshore wave energy power generation systems usually require the construction of complex structures at sea, such as dams, buoys, etc. These structures are not only costly, but also easily damaged by severe sea conditions. The efficiency of offshore wave energy power generation systems is affected by wave height and wave direction, and these parameters are constantly changing at sea, so it is difficult to ensure the stability of the system and the consistency of output power. Existing offshore photovoltaic and offshore wave energy power generation technologies require a lot of manpower and material resources for maintenance and repair, especially in harsh offshore environments, where maintenance is difficult and risky. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the current means of utilizing offshore photovoltaic and offshore wave energy are relatively single, greatly affected by changes in natural conditions, the collection location and range are relatively fixed, and the operation and maintenance of offshore energy power generation devices are difficult and costly, thereby providing an offshore wave photovoltaic storage power generation device and system with an intelligent power system. Through the coordination and regulation of the main station and the mobile power generation device, more flexible and sufficient collection and call of offshore solar energy and wave energy can be achieved, while the scope of energy collection is expanded, the stability and safety of power generation are ensured, and the operation and maintenance costs are reduced.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present invention provides an offshore wave photovoltaic storage power generation device with an intelligent power system, comprising:

[0006] Floating carrier at sea;

[0007] Photovoltaic power generation device, installed on a floating carrier at sea, used to generate electricity based on solar energy when weather conditions permit;

[0008] A wave power generation device is arranged on the periphery of a floating carrier at sea and is used to generate electricity based on wave energy;

[0009] Sensing equipment, arranged at a preset position of the offshore floating carrier, including: positioning sensors, attitude sensors, video sensors and photothermal sensors, for collecting status information of the device;

[0010] An energy storage device, comprising an energy storage battery system, an inverter and an energy transmission interface, wherein the energy transmission interface is used to output the electric energy generated by the photovoltaic power generation device and / or the wave power generation device stored in the energy storage battery system through the inverter;

[0011] The intelligent power device comprises: a power system, a controller and a communication device; the controller controls the power system to drive the offshore floating carrier to float to a target position based on data obtained by the sensor device and by obtaining control instructions from the control main station, and controls the photovoltaic power generation device and / or the wave power generation device to achieve different power generation modes; the communication device is used for information communication between the device and the control main station, including data collected by the sensor device and control instructions sent by the control main station.

[0012] In one embodiment, the photovoltaic power generation device includes: a foldable photovoltaic panel, a retractable photovoltaic panel support rod and a photovoltaic storage cabin, wherein the foldable photovoltaic panel generates electricity based on solar energy in an unfolded state, the retractable photovoltaic panel support rod is fixed on an offshore floating carrier to support the foldable photovoltaic panel in the unfolded state; the photovoltaic storage cabin is located inside the offshore floating carrier to store the foldable photovoltaic panel in the folded state.

[0013] In one embodiment, the photovoltaic power generation device further includes: a wind and wave protection plate, which is used to cover the opening of the photovoltaic storage cabin after the foldable photovoltaic panel is stored in the photovoltaic storage cabin.

[0014] In one embodiment, the controller integrates a navigation and autopilot system, an energy distribution management system, and an energy analysis, tracking, and positioning system, wherein:

[0015] Energy distribution management system, used to distribute the device's own power consumption and external power supply;

[0016] Energy analysis, tracking and positioning system, used to determine the best regional location for installation based on the forecast of solar resources and the actual climate conditions at sea, and to find the best photovoltaic power generation location to collect energy based on the mileage that can be carried by its own energy storage battery system;

[0017] The navigation and automatic driving system is used to automatically navigate to the target position based on the control instructions received from the control main station, the analysis results of the energy analysis and tracking positioning system, and the positioning sensor to locate its own position.

[0018] In one embodiment, the controller receives an extreme weather avoidance instruction sent by the control main station, and when in an extreme weather area, avoids to a safe place or directly returns to avoid danger according to the mileage supported by its own energy.

[0019] In one embodiment, the controller controls the photovoltaic power generation device and the wave power generation device to realize photovoltaic power generation, wave power generation or wave power generation mode according to the climate conditions of the location.

[0020] In one embodiment, the device further comprises: an electrical equipment compartment for accommodating an energy storage battery system, a controller and an inverter.

[0021] In the second aspect, an embodiment of the present invention provides an offshore wave photovoltaic power generation system with an intelligent power system, comprising an offshore wave photovoltaic power generation device with an intelligent power system as described in any embodiment of the first aspect, and a control main station. After the offshore wave photovoltaic power generation device completes collecting electric energy or when the control main station needs to transmit electricity and charge energy, it returns to the corresponding control main station for energy transmission, or when operation and maintenance are required, it is recalled by the control main station to the corresponding offshore wave photovoltaic power generation device for maintenance.

[0022] In one embodiment, the control main station includes: an energy receiving interface, a centralized energy storage station, a centralized converter station, a dispatching monitoring, and an operation and inspection maintenance center; the energy receiving interface is connected to the energy transmission interface of the offshore wave power generation device to absorb electric energy and store it in the centralized energy storage station, and the electric energy is output to the power grid through the centralized converter station; the dispatching monitoring, and operation and inspection maintenance center issues control instructions to the device according to the climate conditions, the information fed back by the device through the communication device, and the electricity demand.

[0023] In one embodiment, the control master station includes at least one, and each control master station regulates a preset number of power generation devices.

[0024] The technical solution of the present invention has the following advantages:

[0025] 1. The present invention provides an offshore wave photovoltaic energy storage power generation device with an intelligent power system, which integrates solar energy, wave energy and electrochemical energy storage systems, can realize the utilization of multiple energy sources, improve power generation efficiency and stability, ensure the reliability of the device, and adopt an intelligent power system and an advanced control system, so that the device can automatically adjust the direction and speed, maximize the use of available energy, and improve energy utilization. The hull shape can be easily moved and adjusted at sea to select the most suitable location for photovoltaic or wave energy power generation.

[0026] 2. The present invention provides an offshore wave-solar-energy storage and power generation system with an intelligent power system, which forms a flexible dynamic power generation mode in which many wave-solar energy collection ships are scattered in the energy-richest sea areas to charge energy, and the control main station uniformly controls the external energy transmission. When operation and maintenance are required, the corresponding energy collection device can be recalled at the control main station for maintenance, saving the cost of maintenance in the distant sea. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a side view of an offshore wave photovoltaic power generation device with an intelligent power system in an embodiment of the present invention;

[0029] Figure 2 A top view of an offshore wave photovoltaic power generation device with an intelligent power system in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the control master station.

[0031] Reference numerals:

[0032] Reference numerals

[0033] 1- offshore floating carrier; 2- photovoltaic power generation device; 21- photovoltaic panel; 22- photovoltaic panel support rod;

[0034] 23- Photovoltaic storage cabin; 24- Wind and wave protection board; 3- Wave power generation device; 4- Sensing equipment;

[0035] 5-energy storage device; 51-energy delivery interface; 6-intelligent power device; 10-energy receiving interface;

[0036] 20-centralized energy storage station; 30-centralized converter station; 40-operation and maintenance center. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example 1

[0040] The embodiment of the present invention provides an offshore wave photovoltaic power generation device with an intelligent power system, such as Figure 1 As shown, including:

[0041] The offshore floating carrier 1; in the embodiment of the present invention, the offshore floating carrier may be a small floating platform or a hull, and the embodiment of the present invention is described by taking the hull as an example.

[0042] The photovoltaic power generation device 2 is arranged on a floating carrier at sea and is used to generate electricity based on solar energy under weather conditions. Specifically, the photovoltaic power generation device 2 includes: a foldable photovoltaic panel 21, a retractable photovoltaic panel support rod 22 and a photovoltaic storage cabin 23, wherein the foldable photovoltaic panel generates electricity based on solar energy in an unfolded state, and the retractable photovoltaic panel support rod is fixed on the floating carrier at sea and is used to support the foldable photovoltaic panel in an unfolded state; the photovoltaic storage cabin is located inside the hull and is used to store the foldable photovoltaic panel in a folded state. In practical applications, when the weather is clear and the solar energy is sufficient, the foldable photovoltaic panel 21 is in an unfolded state to generate electricity, and is in a folded state under cloudy, rainy or windy weather conditions. Furthermore, it also includes a wind and wave protection plate 24, which is used to cover the opening of the photovoltaic storage cabin after the foldable photovoltaic panel is stored in the photovoltaic storage cabin, so as to prevent the seawater rolled up by wind and waves from entering the photovoltaic storage cabin.

[0043] The wave power generation device 3 is arranged on the periphery of the offshore floating carrier and is used to generate electricity based on wave energy; specifically, it is a floating wave power generator, such as Figure 2 As shown, a relatively mature generator can be selected, and no specific limitation is given here.

[0044] The sensing device 4 is set at a preset position of the floating carrier at sea, including: positioning sensor, attitude sensor, video sensor and photothermal sensor, which are used to collect the status information of the device; specifically, the position of the positioning sensor positioning device itself is used to find a suitable collection area in the future and help the control master station to control the position of the collection device; the attitude sensor and photothermal sensor are used to collect the attitude of the power generation device and the photothermal information of the location, respectively, and are used to control the orientation of the photovoltaic panel in combination with the real-time climate status to achieve the most efficient power collection; the video sensor is used to monitor the actual scene of the power generation device and to control the master station to monitor the status of the device. It should be noted that the position of each sensor is reasonably set according to the adaptive position, and the relative position of the position in the figure with other modules is only an example and is not limited to this.

[0045] The energy storage device 5 includes an energy storage battery system, an inverter and an energy transmission interface 51, wherein the energy transmission interface is used to output the electric energy generated by the photovoltaic power generation device and / or the wave power generation device stored in the energy storage battery system through the inverter.

[0046] The intelligent power device 6 includes: a power system, a controller and a communication device; the controller controls the power system to drive the offshore floating carrier to float to the target position based on the data obtained by the sensor device and by obtaining the control instructions of the control main station, and controls the photovoltaic power generation device and / or the wave power generation device to achieve different power generation modes, including photovoltaic power generation, wave power generation or wave power generation mode; the communication device is used for information communication between the device and the control main station, including data collected by the sensor device and control instructions sent by the control main station.

[0047] In the embodiment of the present invention, the controller integrates a navigation and automatic driving system, an energy distribution management system and an energy analysis, tracking and positioning system, wherein:

[0048] Energy distribution management system, used to distribute the device's own power consumption and external power supply;

[0049] Energy analysis, tracking and positioning system, used to determine the best regional location for installation based on the forecast of solar resources and the actual climate conditions at sea, and to find the best photovoltaic power generation location to collect energy based on the mileage that can be carried by its own energy storage battery system;

[0050] The navigation and automatic driving system is used to automatically navigate to the target position based on the control instructions received from the control main station, the analysis results of the energy analysis and tracking positioning system, and the positioning sensor to locate its own position.

[0051] When encountering extreme weather, the controller receives extreme weather avoidance instructions sent by the control master station and, in extreme weather areas, avoids to a safe place or returns directly to avoid danger based on the mileage supported by its own energy.

[0052] Through the various systems integrated on the controller, the power generation device can automatically locate and track the areas with the most concentrated and abundant solar energy and wave energy according to the climate change in the area, and go to the most suitable charging location for charging according to the current power and the distance from the main energy control and convergence station, so as to improve the time utilization rate, stay away from rainy or extreme weather seas, and charge and collect energy to the maximum extent. After the energy is collected, or when the control main station needs to send power for charging, it will immediately rush to the corresponding main station for energy transmission, thus forming a flexible and dynamic power generation mode in which many light wave energy collection ships are scattered in the most energy-rich sea areas for charging and the control main station uniformly controls the energy to be sent out.

[0053] In practice, the controller controls the photovoltaic power generation device and the wave power generation device according to the climatic conditions of the location to realize photovoltaic power generation, wave-light power generation or wave power generation mode. The specific power generation mode control logic is: first, it is necessary to determine whether the power in the battery of the current energy storage device can allow the device to return from the current location to the control main station. If not, the control device will find a nearby area with rich light or wave resources for charging. At this time, the photovoltaic power generation device or the wave power generation device is turned on to maximize power generation and energy storage. If the battery is sufficient to return and the battery is not yet full, it can return to the control main station to deliver power or continue to look for areas with rich light and wave resources to charge and store energy, depending on the overall scheduling needs of the control main station. When the current wave and light resources are good (for example: more than 70% of the area of ​​the photovoltaic panel is charging), and the wave power generation device reaches more than 70% of the maximum charging power, it remains motionless, and the photovoltaic panel and the wave power generation device are opened to store energy together. If the charging area of ​​the photovoltaic panel is less than 50%, and the charging power of the wave power generation device is less than 50% of the maximum power, and the energy storage battery has enough power to return to the platform, the cruise mode to find the best charging location is turned on, and the best charging point is found while charging. When the 70% charging point is found, stop moving and charge statically. When encountering extreme weather such as heavy rain, thunder and lightning, put away the photovoltaic panels, rely only on wave power generation, and start the power device at the same time to escape from the extreme weather area as soon as possible. As long as the battery in the energy storage device is full, the device will automatically return. On the way back, turn on the photovoltaic panels and wave power generation devices as much as possible, and try to use the newly collected energy to charge the battery to offset the energy required for travel. If encountering extreme weather, the photovoltaic panels are also put away, and only the wave power generation device is used for charging.

[0054] The power generation device in the embodiment of the present invention also includes: an electrical equipment compartment, which is used to accommodate the energy storage battery system, the controller and the inverter, and to aggregate and store the electrical equipment for subsequent inspection and maintenance by electrical engineers.

[0055] The device provided in the embodiment of the present invention integrates solar energy, wave energy and electrochemical energy storage system, can realize the utilization of multiple energy sources, improve the power generation efficiency and stability, ensure the reliability of the device, and adopts an intelligent power system and an advanced control system, which can enable the device to automatically adjust the direction and speed, maximize the use of available energy, and improve energy utilization. The hull shape can be easily moved and adjusted at sea to select the most suitable location for photovoltaic or wave power generation.

[0056] Example 2

[0057] An embodiment of the present invention provides an offshore wave photovoltaic power generation system with an intelligent power system, comprising: an offshore wave photovoltaic power generation device with an intelligent power system according to any one of the implementation modes in Example 1, and a control main station. After the offshore wave photovoltaic power generation device completes collecting electric energy or when the control main station needs to transmit electricity and charge energy, it returns to the corresponding control main station for energy transmission, or when operation and maintenance are required, the control main station recalls the corresponding offshore wave photovoltaic power generation device for maintenance.

[0058] like Figure 3 As shown, the control main station includes: an energy receiving interface 10, a centralized energy storage station 20, a centralized converter station 30, and a dispatching monitoring and operation inspection and maintenance center 40; the energy receiving interface is connected to the energy transmission interface of the offshore wave power generation device to absorb electric energy and store it in the centralized energy storage station, and the electric energy is output to the power grid through the centralized converter station; the dispatching monitoring and operation inspection and maintenance center issues control instructions to the device according to the climate conditions, the information fed back by the device through the communication device and the power demand.

[0059] In practical applications, the control master station includes at least one, and each control master station regulates a preset number of power generation devices. The control master station can generally be set near the shore or island, establish a grid connection, and be equipped with a certain number of devices with light wave energy storage and collection capabilities according to the power transmission demand, so as to generate electricity and transmit energy.

[0060] The offshore wave photovoltaic energy storage power generation system with intelligent power system provided by the embodiment of the present invention has a power generation device integrating solar energy, wave energy and electrochemical energy storage system, which can realize the utilization of multiple energy sources, form a flexible dynamic power generation mode in which many wave photovoltaic energy collection ships are scattered in the most energy-rich sea areas to charge energy, and the control main station uniformly controls the external energy transmission. When operation and maintenance are required, the corresponding energy collection device can be recalled at the control main station for maintenance, saving the cost of maintenance in the distant sea.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention.

Claims

1. An offshore wave photovoltaic power generation device with an intelligent power system, characterized in that: include: Floating carrier at sea; Photovoltaic power generation device, installed on a floating carrier at sea, used to generate electricity based on solar energy when weather conditions permit; A wave power generation device is arranged on the periphery of a floating carrier at sea and is used to generate electricity based on wave energy; Sensing equipment, arranged at a preset position of the offshore floating carrier, including: positioning sensors, attitude sensors, video sensors and photothermal sensors, for collecting status information of the device; An energy storage device, comprising an energy storage battery system, an inverter and an energy transmission interface, wherein the energy transmission interface is used to output the electric energy generated by the photovoltaic power generation device and / or the wave power generation device stored in the energy storage battery system through the inverter; An intelligent power device, comprising: a power system, a controller and a communication device; the controller controls the power system to drive the offshore floating carrier to float to a target location based on data acquired by the sensor device and by acquiring control instructions from a control master station set near the shore or island, and controls the photovoltaic power generation device and / or the wave power generation device to achieve different power generation modes; the communication device is used for information communication between the device and the control master station, including data collected by the sensor device and control instructions sent by the control master station; The controller integrates a navigation and autopilot system, an energy distribution management system, and an energy analysis, tracking, and positioning system, wherein: Energy distribution management system, used to distribute the device's own power consumption and external power supply; Energy analysis, tracking and positioning system, used to determine the best regional location for installation based on the forecast of solar resources and the actual climate conditions at sea, and to find the best photovoltaic power generation location to collect energy based on the mileage that can be carried by its own energy storage battery system; Navigation and automatic driving system, used to automatically navigate and drive to the target position based on the control command received from the control master station, the analysis results of the energy analysis and tracking positioning system, and the positioning sensor to locate its own position; The controller receives extreme weather avoidance instructions sent by the control master station, and when in extreme weather areas, it avoids to a safe place or returns directly to avoid danger based on the mileage supported by its own energy.

2. The device according to claim 1, characterized in that The photovoltaic power generation device includes: a foldable photovoltaic panel, a retractable photovoltaic panel support rod and a photovoltaic storage cabin, wherein the foldable photovoltaic panel generates electricity based on solar energy in an unfolded state, the retractable photovoltaic panel support rod is fixed on an offshore floating carrier to support the foldable photovoltaic panel in the unfolded state; the photovoltaic storage cabin is located inside the offshore floating carrier to store the foldable photovoltaic panel in the folded state.

3. The device according to claim 2, characterized in that The photovoltaic power generation device further comprises: a wind and wave protection plate, which is used to cover the opening of the photovoltaic storage cabin after the foldable photovoltaic panel is stored in the photovoltaic storage cabin.

4. The device according to claim 1, characterized in that The controller controls the photovoltaic power generation device and the wave power generation device according to the climate conditions of the location to realize photovoltaic power generation, wave-light power generation or wave power generation mode.

5. The device according to claim 1, characterized in that Also includes: The electrical equipment compartment is used to accommodate the energy storage battery system, controller and inverter.

6. An offshore wave photovoltaic power generation system with an intelligent power system, characterized in that: include: The offshore wave power storage and power generation device with intelligent power system as described in any one of claims 1-5, and the control main station, after the offshore wave power storage and power generation device completes collecting electric energy or when the control main station needs to send power for charging, it returns to the corresponding control main station for energy transmission, or when operation and maintenance are required, it is recalled by the control main station for inspection and maintenance.

7. The system according to claim 6, characterized in that The control main station includes: an energy receiving interface, a centralized energy storage station, a centralized converter station, a dispatching monitoring, and an operation and inspection maintenance center; the energy receiving interface is connected to the energy transmission interface of the offshore wave power generation device to absorb electric energy and store it in the centralized energy storage station, and the electric energy is output to the power grid through the centralized converter station; the dispatching monitoring, and operation and inspection maintenance center issues control instructions to the device according to the climate conditions, the information fed back by the device through the communication device, and the electricity demand.

8. The system according to claim 6, characterized in that The control master station includes at least one, and each control master station regulates a preset number of power generation devices.

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